Finding the Fourth Proportional to 12,496.52, 17,245.94 and 7,191.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.52 : 17,245.94 = 7,191.22 : x
2. Step 2: Convert to fraction form
   12,496.52/17,245.94 = 7,191.22/x
3. Step 3: Cross multiply
   12,496.52x = 17,245.94 × 7,191.22
4. Step 4: Simplify right side
   12,496.52x = 124,019,348.65
5. Step 5: Solve for x
   x = 124,019,348.65/12,496.52
6. Step 6: Final answer
   x = 9,924.31